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Recent questions tagged harmonic-progression

If $a_{1}, a_{2}, a_{3},.....$ are in HP and $f (k)$ = $\displaystyle\sum_{r=1}^{n}\;a_{r}-a_{k}$, then $\large\frac{a_{1}}{f (1)}$, $\large\frac{a_{2}}{f (2)}$, $\large\frac{a_{3}}{f (3)}$,...,$\large\frac{a_{n}}{f (n)}$ are in

asked Jan 23, 2014 by yamini.v

1 answer

If $log\:_{5.2^{x}+1}^{2}$, $log\:_{2^{x-1}+1}^{4}$ and 1 are in HP, then

asked Jan 23, 2014 by yamini.v

1 answer

If a , b , c , d are in HP $\;\large\frac{d^{-2}-a^{-2}}{c^{-2}-b^{-2}}\;$ equals

asked Jan 22, 2014 by yamini.v

1 answer

Harmonic mean of roots of equation $(5+\sqrt{2})\;x^2$ - $(4+\sqrt{2})\;x$ + $8$ + $2\;\sqrt{2}$ will be

asked Jan 21, 2014 by yamini.v

1 answer

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